feat: add screen request in flutter

flutter/beagle/lib/beagle.dart

@@ -22,3 +22,5 @@ export 'package:beagle/model/beagle_ui_element.dart';
 export 'package:beagle/beagle_widget.dart';
 export 'package:beagle/model/beagle_config.dart';
 export 'package:beagle/model/beagle_environment.dart';
+export 'package:beagle/networking/beagle_request.dart';
+export 'package:beagle/networking/beagle_screen_request.dart';

flutter/beagle/lib/beagle_sdk.dart

@@ -28,7 +28,7 @@ import 'package:beagle/interface/navigation_controller.dart';
 import 'package:beagle/interface/storage.dart';
 import 'package:beagle/logger/beagle_logger.dart';
 import 'package:beagle/model/beagle_config.dart';
-import 'package:beagle/model/network_strategy.dart';
+import 'package:beagle/networking/beagle_network_strategy.dart';
 import 'package:beagle/service_locator.dart';
 import 'package:beagle/setup/beagle_design_system.dart';
 
@@ -50,7 +50,7 @@ class BeagleSdk {
     Storage storage,
     bool useBeagleHeaders,
     Map<String, ActionHandler> actions,
-    NetworkStrategy strategy,
+    BeagleNetworkStrategy strategy,
     Map<String, NavigationController> navigationControllers,
     DesignSystem designSystem,
     BeagleImageDownloader imageDownloader,
@@ -72,7 +72,7 @@ class BeagleSdk {
       useBeagleHeaders: useBeagleHeaders ?? true,
       actions:
           actions == null ? defaultActions : {...defaultActions, ...actions},
-      strategy: strategy ?? NetworkStrategy.beagleWithFallbackToCache,
+      strategy: strategy ?? BeagleNetworkStrategy.beagleWithFallbackToCache,
       navigationControllers: navigationControllers,
     );
   }

flutter/beagle/lib/beagle_widget.dart

@@ -22,6 +22,7 @@ import 'package:beagle/components/beagle_undefined_widget.dart';
 import 'package:beagle/interface/beagle_view.dart';
 import 'package:beagle/model/beagle_ui_element.dart';
 import 'package:beagle/model/route.dart';
+import 'package:beagle/networking/beagle_screen_request.dart';
 import 'package:flutter/widgets.dart';
 
 typedef OnCreateViewListener = void Function(BeagleView view);
@@ -31,17 +32,17 @@ typedef OnCreateViewListener = void Function(BeagleView view);
 class BeagleWidget extends StatefulWidget {
   const BeagleWidget({
     Key key,
-    this.url,
     this.onCreateView,
     this.screenJson,
+    this.screenRequest,
   }) : super(key: key);
 
-  /// Server URL will be used to make a request.
-  final String url;
-
   /// that represents a local screen to be shown.
   final String screenJson;
 
+  /// provides the url, method, headers and body to the request.
+  final BeagleScreenRequest screenRequest;
+
   /// get a current BeagleView.
   final OnCreateViewListener onCreateView;
 
@@ -62,17 +63,17 @@ class _BeagleWidget extends State<BeagleWidget> {
 
   Future<void> _startBeagleView() async {
     await BeagleSdk.getService().start();
-
-    _view = BeagleSdk.getService().createView()
-      ..subscribe((tree) {
+    _view = BeagleSdk.getService().createView(
+      networkOptions: widget.screenRequest,
+    )..subscribe((tree) {
         final widgetLoaded = _buildViewFromTree(tree);
         setState(() {
           widgetState = widgetLoaded;
         });
       });
 
-    if (widget.url != null) {
-      await _view.getNavigator().pushView(RemoteView(widget.url));
+    if (widget.screenRequest != null) {
+      await _view.getNavigator().pushView(RemoteView(widget.screenRequest.url));
     } else {
       await _view
           .getNavigator()
@@ -95,6 +96,6 @@ class _BeagleWidget extends State<BeagleWidget> {
 
   @override
   Widget build(BuildContext context) {
-    return widgetState ??  const SizedBox.shrink();
+    return widgetState ?? const SizedBox.shrink();
   }
 }

flutter/beagle/lib/bridge_impl/beagle_js_engine.dart

@@ -27,16 +27,17 @@ import 'package:beagle/interface/storage.dart';
 import 'package:beagle/interface/types.dart';
 import 'package:beagle/model/beagle_action.dart';
 import 'package:beagle/model/beagle_ui_element.dart';
-import 'package:beagle/model/request.dart';
 import 'package:beagle/model/response.dart';
+import 'package:beagle/networking/beagle_network_options.dart';
+import 'package:beagle/networking/beagle_request.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_js/flutter_js.dart';
 
 typedef ActionListener = void Function(
     {BeagleAction action, BeagleView view, BeagleUIElement element});
 
-typedef HttpListener = void Function(String requestId, Request request);
+typedef HttpListener = void Function(String requestId, BeagleRequest request);
 
 /// Provides an interface to run javascript code and listen to Beagle's core
 /// events.
@@ -273,12 +274,18 @@ class BeagleJSEngine {
     }
   }
 
-  // todo: increment this to pass more configurations
   /// Creates a new BeagleView and returns the created view id.
-  String createBeagleView() {
-    final result = _jsRuntime.evaluate('global.beagle.createBeagleView()');
-    final id = result.stringResult;
-    debugPrint('created beagle view with id $id');
+  String createBeagleView({
+    BeagleNetworkOptions networkOptions,
+    String initialControllerId,
+  }) {
+    final params = [BeagleNetworkOptions.toJsonEncode(networkOptions)];
+    if (initialControllerId != null) {
+      params.add(initialControllerId);
+    }
+    final script = 'global.beagle.createBeagleView(${params.join(', ')})';
+    final id = _jsRuntime.evaluate(script).stringResult;
+
     return id;
   }
 

flutter/beagle/lib/bridge_impl/beagle_js_request_message.dart

@@ -14,9 +14,9 @@
  * limitations under the License.
  */
 
-import 'package:beagle/bridge_impl/beagle_supported_http_methods.dart';
-import 'package:beagle/model/request.dart';
-import 'package:flutter_js/extensions/xhr.dart';
+import 'package:beagle/networking/beagle_http_method.dart';
+import 'package:beagle/networking/beagle_request.dart';
+import 'package:beagle/utils/enum.dart';
 
 /// Encapsulates a Beagle javascript HTTP request message.
 class BeagleJSRequestMessage {
@@ -30,15 +30,15 @@ class BeagleJSRequestMessage {
 
   String _requestId;
   String _url;
-  HttpMethod _method;
+  BeagleHttpMethod _method;
   Map<String, String> _headers;
   String _body;
 
-  HttpMethod _getHttpMethod(Map<String, dynamic> json) {
+  BeagleHttpMethod _getHttpMethod(Map<String, dynamic> json) {
     final String httpMethodStr =
         json.containsKey('method') ? json['method'].toLowerCase() : 'get';
 
-    return BeagleSupportedHttpMethods().getHttpMethod(httpMethodStr);
+    return EnumUtils.fromString(BeagleHttpMethod.values, httpMethodStr);
   }
 
   Map<String, String> _getHeaders(Map<String, dynamic> json) {
@@ -50,7 +50,7 @@ class BeagleJSRequestMessage {
 
   String get requestId => _requestId;
 
-  Request toRequest() {
-    return Request(_url, method: _method, headers: _headers, body: _body);
+  BeagleRequest toRequest() {
+    return BeagleRequest(_url, method: _method, headers: _headers, body: _body);
   }
 }

flutter/beagle/lib/bridge_impl/beagle_service_js.dart

@@ -27,9 +27,10 @@ import 'package:beagle/interface/global_context.dart';
 import 'package:beagle/interface/http_client.dart';
 import 'package:beagle/interface/navigation_controller.dart';
 import 'package:beagle/interface/storage.dart';
-import 'package:beagle/model/network_options.dart';
-import 'package:beagle/model/network_strategy.dart';
-import 'package:beagle/model/request.dart';
+import 'package:beagle/networking/beagle_network_options.dart';
+import 'package:beagle/networking/beagle_network_strategy.dart';
+import 'package:beagle/networking/beagle_request.dart';
+import 'package:beagle/utils/network_strategy.dart';
 
 class BeagleServiceJS implements BeagleService {
   BeagleServiceJS(
@@ -60,7 +61,7 @@ class BeagleServiceJS implements BeagleService {
   @override
   Map<String, ActionHandler> actions;
   @override
-  NetworkStrategy strategy;
+  BeagleNetworkStrategy strategy;
   @override
   Map<String, NavigationController> navigationControllers;
   @override
@@ -88,18 +89,6 @@ class BeagleServiceJS implements BeagleService {
     return result;
   }
 
-  // transforms the enum NetworkStrategy into the string expected by beagle web (js)
-  String getJsStrategyName() {
-    /* When calling toString in an enum, it returns EnumName.EnumValue, we just need the part after
-    the ".", which will give us the strategy name in camelCase. */
-    final strategyNameInCamelCase = strategy.toString().split('.')[1];
-    /* beagle web needs the strategy name in kebab-case, we use a regex to replace the uppercase
-    letters with a hyphen and the lower case equivalent. */
-    final strategyNameInKebabCase = strategyNameInCamelCase.replaceAllMapped(
-        RegExp('[A-Z]'), (match) => '-${match[0].toLowerCase()}');
-    return strategyNameInKebabCase;
-  }
-
   @override
   Future<void> start() async {
     await _beagleJSEngine.start(storage: storage);
@@ -114,7 +103,7 @@ class BeagleServiceJS implements BeagleService {
       'baseUrl': baseUrl,
       'actionKeys': actions.keys.toList(),
       'useBeagleHeaders': useBeagleHeaders,
-      'strategy': getJsStrategyName(),
+      'strategy': NetworkStrategyUtils.getJsStrategyName(strategy),
     };
     final navigationControllers = getNavigationControllersAsMap();
     if (navigationControllers != null) {
@@ -125,7 +114,7 @@ class BeagleServiceJS implements BeagleService {
   }
 
   void _registerHttpListener() {
-    _beagleJSEngine.onHttpRequest((String id, Request request) async {
+    _beagleJSEngine.onHttpRequest((String id, BeagleRequest request) async {
       final response = await httpClient.sendRequest(request);
       _beagleJSEngine.respondHttpRequest(id, response);
     });
@@ -143,7 +132,11 @@ class BeagleServiceJS implements BeagleService {
 
   @override
   BeagleView createView(
-      {NetworkOptions networkOptions, String initialControllerId}) {
-    return BeagleViewJS(_beagleJSEngine);
+      {BeagleNetworkOptions networkOptions, String initialControllerId}) {
+    return BeagleViewJS(
+      _beagleJSEngine,
+      networkOptions: networkOptions,
+      initialControllerId: initialControllerId,
+    );
   }
 }

flutter/beagle/lib/bridge_impl/beagle_view_js.dart

@@ -22,17 +22,18 @@ import 'package:beagle/interface/beagle_navigator.dart';
 import 'package:beagle/interface/beagle_view.dart';
 import 'package:beagle/interface/renderer.dart';
 import 'package:beagle/model/beagle_ui_element.dart';
-import 'package:beagle/model/network_options.dart';
+import 'package:beagle/networking/beagle_network_options.dart';
 
 class BeagleViewJS implements BeagleView {
   BeagleViewJS(
     this._beagleJSEngine, {
-    // ignore: avoid_unused_constructor_parameters
-    NetworkOptions networkOptions,
-    // ignore: avoid_unused_constructor_parameters
+    BeagleNetworkOptions networkOptions,
     String initialControllerId,
   }) {
-    _id = _beagleJSEngine.createBeagleView();
+    _id = _beagleJSEngine.createBeagleView(
+      networkOptions: networkOptions,
+      initialControllerId: initialControllerId,
+    );
     BeagleViewJS.views[_id] = this;
     _navigator = BeagleNavigatorJS(_beagleJSEngine, _id);
     _renderer = RendererJS(_beagleJSEngine, _id);

flutter/beagle/lib/default/default_http_client.dart

@@ -17,24 +17,24 @@
 
 import 'dart:async';
 import 'package:beagle/interface/http_client.dart';
-import 'package:beagle/model/request.dart';
 import 'package:beagle/model/response.dart';
-import 'package:flutter_js/extensions/xhr.dart';
+import 'package:beagle/networking/beagle_http_method.dart';
+import 'package:beagle/networking/beagle_request.dart';
 import 'package:http/http.dart' as http;
 
 class DefaultHttpClient implements HttpClient {
   const DefaultHttpClient();
   @override
-  Future<Response> sendRequest(Request req) async {
+  Future<Response> sendRequest(BeagleRequest req) async {
     final handlers = {
-      HttpMethod.get: () => http.get(req.url, headers: req.headers),
-      HttpMethod.post: () =>
+      BeagleHttpMethod.get: () => http.get(req.url, headers: req.headers),
+      BeagleHttpMethod.post: () =>
           http.post(req.url, headers: req.headers, body: req.body),
-      HttpMethod.put: () =>
+      BeagleHttpMethod.put: () =>
           http.put(req.url, headers: req.headers, body: req.body),
-      HttpMethod.patch: () =>
+      BeagleHttpMethod.patch: () =>
           http.patch(req.url, headers: req.headers, body: req.body),
-      HttpMethod.delete: () => http.delete(req.url, headers: req.headers),
+      BeagleHttpMethod.delete: () => http.delete(req.url, headers: req.headers),
     };
     final response = await handlers[req.method]();
     return Response(response.statusCode, response.body, response.headers,

flutter/beagle/lib/default/default_image_downloader.dart

@@ -19,18 +19,19 @@ import 'dart:typed_data';
 
 import 'package:beagle/interface/beagle_image_downloader.dart';
 import 'package:beagle/interface/http_client.dart';
-import 'package:beagle/model/request.dart';
+import 'package:beagle/networking/beagle_request.dart';
 import 'package:flutter/foundation.dart';
 
 class DefaultBeagleImageDownloader implements BeagleImageDownloader {
-  DefaultBeagleImageDownloader({@required this.httpClient})
-      : assert(httpClient != null);
+  DefaultBeagleImageDownloader({
+    @required this.httpClient,
+  }) : assert(httpClient != null);
 
   final HttpClient httpClient;
 
   @override
   Future<Uint8List> downloadImage(String url) async {
-    final request = Request(url);
+    final request = BeagleRequest(url);
     final response = await httpClient.sendRequest(request);
 
     if (response.status != HttpStatus.ok) {